The widespread use of botulinum toxin type A (BTX-A) for aesthetic procedures in recent years has brought about some unwanted side effects that, though they are self-limited, cause inconvenience for patients.
Landmark study: 670 nm LED rescued retinal function from methanol toxicity up to 50 hours post-intoxication, first linking in vitro mitochondrial effects to in vivo retinoprotection.
Low-intensity infrared laser produced beneficial cellular responses without damage; established dose-response relationships for ophthalmic applications.
Belkin and Schwartz established safety thresholds and therapeutic parameters for ophthalmic low-level laser therapy, informing contemporary protocols.
